Posts Tagged ‘Allergy’

Anthistamine and Allergy: Act and Characteristics

antihistamine and allergy: act and characteristicsAntihistamines are useful for treating and preventing any of the disorders described in the posting before, since they act to histamine in the following ways:

- Prevent its production.
- Accelerate its destruction.
- Prevent it from attaching to the receptors.

On the other hand, it is necessary to take into account that these drugs have been classified as classical or non-sedating first generation or second generation, and then describes their main characteristics. Read the rest of this entry »

Anthistamine and Allergy: Diagnosis and Administration

antihistamine and allergy: diagnosis and administrationDiagnosis

To diagnose allergies the patient may be subjected to one or more of the following clinical studies:

Measurement of immunoglobulin E. Blood test that reveals the total amount of the antibody in the body when in contact with an allergen.

Skin tests. Consist of applying in the forearm or back different substances that can cause allergy, such as dust, mold, pollen, animal hair, cosmetics, metals, food and medicine. Those affected by this disease have redness, hives and itching 15 minutes later.

Patch testing. When practicing different substances are placed on the skin of the back, which are covered with patches for 48 or 72 hours later, we review in which regions of the epidermis was allergic response. Read the rest of this entry »

Antihistamine and Allergy: Risk Factors

antihistamines

The environment we are exposed contains both harmless and harmful elements, which can enter the body through the respiratory tract, gastrointestinal tract, skin and mucous membranes, and when this happens, the immune system (the one who defends us from external aggression) is activated and identifies whether the substances that enter the body are harmful or not.

However, there are times when acts unreasonably and recognized as dangerous (when in reality they tend to affect most people), leading to the production of histamine, compound responsible for producing allergic reactions can be manifested by congestion and runny nose, watery eyes, sneezing, sore skin, rashes, itching, dizziness, headache and diarrhea.

To control these annoying symptoms usually uses antihistamines, drugs that block the action of histamine and relieve discomfort. Before delving into the characteristics of these drugs should learn more about allergies and the mechanisms that trigger. Read the rest of this entry »

Allergy to Cold in Winter

Allergy to coldAllergy to cold there and people who suffer not only have to avoid the cold, but in cold water, touching cold spots, drinking cold drinks and eat ice cream.

Doctors call the cold allergy, cold urticaria and its most common symptoms are:

* Itching, skin redness and hives.
* Swelling of the hands when holding cold objects.
* Swelling of the lips to eat cold food.
* In rare cases, severe swelling of the tongue and throat that can block breathing (swelling of the throat).

Most often, these symptoms do not occur when the person is exposed to cold but somewhat later when the body is taking heat.

There can also be very severe allergic reactions, especially when diving in cold water, which may cause syncope and death by drowning. The severity of symptoms varies in each case and the most common is itching.

In addition, various types of allergy to cold, but no cure, although in some cases the allergy goes away by itself. People suffering from cold allergy should avoid it and continue medical treatment

General Information of Allergy

allergyWhat is Allergy?

An allergy is an exaggerated response of our organism, when in contact with certain substances from outside. Substances capable of causing an allergic reaction are called allergens or simply allergens.

How do you get?

The immune response is of great importance but sometimes causes serious problems:

In organ transplants (kidney, heart, lung …) our immune system identifies the new organ as foreign and try to put in place to combat it, if not the rejection medications are given to reduce this response (called immunosuppressants).

Sometimes confuses the immune system components of our body with foreign elements and starts a reaction against them leading to the autoimmune diseases (many rheumatic conditions are the origin).

Sometimes it produces an immune response in the presence of harmless substances to the body, which are usually tolerated by it. This overreaction is called allergy and the substances are allergens that trigger. The potential allergens are very numerous and may contact us through various means:

The air we breathe: plant pollens, house dust, fungi, animal hair … Food: fish, eggs, nuts, … Drugs: penicillin, aspirin, … Insect stings, bites, … Skin contact: cosmetics, industrial products …

Read the rest of this entry »